The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2026
Filed:
Jan. 25, 2024
Industrial Technology Research Institute, Hsinchu, TW;
You-En Lin, Taichung City, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A time offset measurement method suitable for Non-Terrestrial Network includes: listening to the first downlink signal and the second downlink signal through the user device to obtain the first reception time and the second reception time; using the known interval time as the unit time length to calculate multiple satellite distance difference values corresponding to multiple unit time lengths through a satellite distance function, obtaining multiple satellite movement time variations through dividing multiple satellite distance difference values by the electromagnetic wave propagation speed, generating a satellite movement function based on each sampling time and each of the satellite movement time variations corresponding to each sampling time; setting the reception time difference to calculate the corresponding sampling time through the satellite movement function as the downlink signal reception time; and obtaining the current distance between the user device and the satellite at the second reception time according to the ephemeris data.
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